Massive speed boost to 2d point cloud renders

We'll need to selectively enable this optimisation when we add control over the point shape, but for now this gives orders of magnitude faster 2d point cloud renders
qgis · Dec 1, 2020 · f68e3ae · f68e3ae
1 parent 6b6347d
commit f68e3ae
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diff --git a/src/core/pointcloud/qgspointcloudrgbrenderer.cpp b/src/core/pointcloud/qgspointcloudrgbrenderer.cpp
@@ -220,9 +220,15 @@ void QgsPointCloudRgbRenderer::renderBlock( const QgsPointCloudBlock *block, Qgs
 
       mapToPixel.transformInPlace( x, y );
 
+#if 0
       pen.setColor( QColor( red, green, blue ) );
       context.renderContext().painter()->setPen( pen );
       context.renderContext().painter()->drawPoint( QPointF( x, y ) );
+#else
+      context.renderContext().painter()->fillRect( QRectF( x - mPainterPenWidth * 0.5,
+          y - mPainterPenWidth * 0.5,
+          mPainterPenWidth, mPainterPenWidth ), QColor( red, green, blue ) );
+#endif
 
       rendered++;
     }

diff --git a/...ontrol_images/pointcloudrenderer/expected_blendmode/expected_blendmode_mask.png b/...ontrol_images/pointcloudrenderer/expected_blendmode/expected_blendmode_mask.png
diff --git a/...ta/control_images/pointcloudrenderer/expected_opacity/expected_opacity_mask.png b/...ta/control_images/pointcloudrenderer/expected_opacity/expected_opacity_mask.png
diff --git a/...ontrol_images/pointcloudrenderer/expected_pointsize/expected_pointsize_mask.png b/...ontrol_images/pointcloudrenderer/expected_pointsize/expected_pointsize_mask.png
diff --git a/..._images/pointcloudrenderer/expected_rgb_contrast/expected_rgb_contrast_mask.png b/..._images/pointcloudrenderer/expected_rgb_contrast/expected_rgb_contrast_mask.png
diff --git a/...trol_images/pointcloudrenderer/expected_rgb_render/expected_rgb_render_mask.png b/...trol_images/pointcloudrenderer/expected_rgb_render/expected_rgb_render_mask.png
diff --git a/...er/expected_rgb_render_crs_transform/expected_rgb_render_crs_transform_mask.png b/...er/expected_rgb_render_crs_transform/expected_rgb_render_crs_transform_mask.png
diff --git a/...ta/control_images/pointcloudrenderer/expected_zfilter/expected_zfilter_mask.png b/...ta/control_images/pointcloudrenderer/expected_zfilter/expected_zfilter_mask.png